I used to go on Franken’s radio show, all ready to be jocular — and what he wanted to talk about was the arithmetic of Social Security, or the structure of Medicare Part D.

In fact, the only elected official I know who’s wonkier than Al Franken is Rush Holt, my congressman — and he used to be the assistant director of Princeton’s plasma physics lab. (The campaign’s bumper stickers read, “My Congressman IS a rocket scientist.”)

So what will Franken do to the level of Senate discourse? He’ll raise it.